Window-screen.



F. P. EDLER.

WINDOW SCREEN.

APPLIUATION FILED SEPT.14, 1911.

1,030,985. Patented July 2, 1912.

J0 J2 J3 my? 514412011 l'oc eially pointed out in the appended claims FRANZ PAUL EDI-ER, OF CHICAGO, ILLINOIS.

WIND OW-SCREEN.

Specification of Letters Patent.

- Patented July 2*, 1912.

Application fiIed'September 14, 1911. Serial No. 649,i 33.

screens, and more particularly to means for detachably securing the screen or other material in place on the frame without the aid of tacks or nails.

In carrying out the invention there is pro-- vided a screen frame having a marginal groove in one face adjacent the inner edge of the frame, and into which roove the edge of the wire cloth or other fabric is forced and securely held by four angularly bent metallic strips, one edge of which enters said groove and the other edge clamps over the wire. At each of the four corners I employ a corner iron having on its outer edge a depending flange, the lower edge of which terminates in teeth, which are forced into the corners of the frame, after the angle strips are in position, and thus hold the same from working loose.

The invention consists in certain details of construction and combination of parts all of which will be more fully set forth, speand illustrated in the accompanying drawing, in which- Figure 1 is a front view of a complete screen, containing my improvements. Fig. 2 is an enlarged view of a corner of the screen with the corner iron omitted. Fig. 3 is a sectional view on the line 33 of Fig. 1 showing the manner of doubling the wire fabric around the angular securing strip. Fig. 4 is a sectional view on the line H of Fig. 1 showing the manner of securing the angular strips in position by the corner iron. Fig. 5 is an inverted perspective view of the corner iron. Fig. 6 is an inverted perspective view of a portion of the angular strip showing the beveled and straight ends of.

the same. Fig. 7 is an enlarged View of a corner taken on the reverse side of Fig. 2, showing the position of the joint securing means.

The screen comprises the screen frame 8, the screen fabric material 9, the angular screen securing strips 10, and the metallic corner irons 11.

The screen frame 8 is preferably of wood, and comprises sections beveled T at their ends and joined together by suitable fastening means, such as crimped metallic strips 12,

adapted to be embedded in the frame sections atthe joints, but positioned one on either side of the frame and one at the inner corner and one at the outer corner, thereby forming a rigid joint. The screen frame 8 is provided on one of its faces with a marginal groove 13, which extends completely around the frame between the inner and outer edges thereof, but nearer to the inner edge. Itis adapted to receive the inturned edge of the wire screen 9. The grooves meet at, the corners of the frame, as will be understood. Between the groove and the inner edge of the frame, the face of thelatter is planed down or recessed at 14. in the manner shown very clearly in Fi s. 3 and 4; At the inner edge, the frame is elow the outer edge of the frame about equal to the thickness of the screen material, and from the inner edge it slants inwardly toward the groove 13, the recess 14 having its greatest depth at the point of juncture with the groove 13, thus providing a space which when the screen is assembled, permits the respective parts to be flush with the face of the frame. I r

The securing strip 10 is preferably formed from a sheet met-a1 blank, and is angular in cross section, and each strip is preferably of a length sufficient to extend from one corner of the frame to the other. One flange of the strip 'is adapted to fit into the groove 13, being provided with straight ends, and the other flange is beveled at its ends to provide a miter-joint at the corner of the frame, as shown in Fig. 2.

The corner irons 11 are made of sheet metal, preferably sheet steel, andare each formed from a suitable blank, the body of each iron consisting of two limbs lfi'and 17 arranged at right angles to each other, each limb being provided along its outer edge with depending, or inwardly extending flanges 18, 19, which stand substantially at right angles to the face of the body portion of the iron, and terminate at their edges in points or teeth, which facilitate the insertion of the corner irons when assembling the screen.

The manner of attaching the wire to the frame is follows: The frame having been 1 outer ed constructed, a piece of screen materialQ is ciit of a sufficient size, (preferably one inch longer and one inch wider than the frame), to fill the space defined by the frame and extend over the recess 14: and beyond the groove 13. The inner flange-of the angular securing strip 10 at one sideis now forced against the screen directly over the groove 13, forcing the screen into the groove as shown in Fig. 3, and causing it to double over the flange. Thestrip is pressed down into the groove until its outer or top flange comes down upon the screen placed over the frame. This causes the screen' and. the top or outer flange of the strip to fit flush with the remaining portion of thatface of the screen 9 as shown in Fig. 4. This operation having been performed on all sides of the screen causes the-securing strips to meet at the corners. The corner irons are now forced into the groove 13 at each corner of the frame, the flanges 18, 19 of the iron being inserted between the outer wall of the groove and the screen material, forcing the screen material and the securing strip more tightly together. The points or'teeth of the flanges of the corner iron are of such a length as to penetrate the frame below the" base of the groove 13. Thus it'will be seen that an efficient screen-securing means has been provided which can be readily attached to or detachedfrom the screen'frame, and when attached to the'frame all parts lie substantially on aplane with the face of the frame. j

The sides of the screen frame may be provided with grooves 22, as in Fig. 2, which are adapted to cooperate with a guide rail carried by a window casing when it is desired to provide a sliding screen.

'The feature of importance in this invention lies in the construction of the frame with the continuous marginal groove which is spaced from the inner edge of the frame at all points, that face of the frame through which the groove enters being beveled inwardly from the inner edge of the frame to the said groove, whereby the deepest poicuring strips are inserted in the groove, they impart a stretching action to the screen, so that the screen is, stretched taut in the open space defined by the inner edges of the frame. Reference being'had to Figs. 3 and 4 of the drawing, it will be noted that the of the screen rests upon the beveled ace ofthe frame, which beveled face commences at the inner edge of the frame and terminates at the groove. It follows that'when each strip is inserted in the groove it pulls upon the screen and tightens the same. The difficulty of tightening the screen material in' the ordinary construction of window and door screens and confining the screen t is well understood. By this improvement the screen material cannot fail to be made tight in applying the securing strips. The principal function of the corner irons is to span and cover the space-or joint between the meeting ends of the securing strips, and in addition to hold the said strips in place. .These corner fastening means are necessary in order to prevent the securing strips I from working out from their attached positions.

By the term screen material I wish it understood "that I do not limit myself to wire screen.

What is claimed is z- 1. In a windowor door screen, the combination of a frame, provided with a marginal grooveextending into the frame in one face, screen material having its edges received in said groove, angular securing strips having one flange adapted to be forced into the groove "and bind the material therein, the other flange clamping the material to the face of the-frame, and a corner iron for each corner adaptedto be. in-

serted into the groove and secure the angular strips at each corner.

2. In a window or door screen, the rectangular frame having on one'face..a.marginal groove which extends part way through the frame and is carried around the frame continuously so as to intersect at the .corners,

screen material having its edges received n the angular securing strips the said groove,

having one flange extendin into the groove flange fitting over the screen material and holding it against the face of the screen frame, and corner irons-for each corner having depending or inwardly extending flanges which enter the groove at the corners and span the angular strips andserve' to hold the latter from dis lacement.

3. A rectangular frame aving in one of its faces a marginal groove extending part way through the frame and between the in 'ner and outer edges of the frame, the space between the groove and the inner edge of the frame being recessed, screen material having its edges inturned and entering the groove, angular securing strips along each side of the frame and meetin at the corners, said strips having their mner flanges enteringthe groove and confining the screen "material therein and having their outer flan es overlapping the screen material and hol ing it against the face of the frame within the recess of the latter, and corner irons, one at each corner, said corner irons having inwardly bent flanges provided with erein, the other teeth at their'extremities, said flanges of the corner irons being of greater length than the inner flanges of the said strips, "whereby when the corner irons are inserted in' the groove at the corners, the flanges are caused to penetrate the frame beyond the groove, the outer face of the corner irons spanning the securing strips and covering the joint between the same. V

4. In a window or door screen, a rectangular frame having in one of its faces a marginal groove extending part way through the frame and between the inner and outer edges of'the frame, that portion of the face ofthe screen between the groove and the inner edge of the frame being beveled inwardly, screen material having its outer edges lying upon the beveled face of the frame and received within the groove,

securing strips along each side of the frame and meeting at the corners, said strips being adapted to force the edges of the screen material into the groove and retain the same therein, and corner fastenings engaging the meeting edges of the securing str ps so as to hold the same in place. I v

5., In a window or doorscreen, the combination of a rectangular frame provided with a marginal groove which extends part way through the. frame and is carried around the latter continuously so as to intersect at the corners, screen material havlng'lts outer edges received in the said groove, angular securing strips along each side of the frame and meeting at the corners, said strips 'eachcorner of the groove adapted to engage the securing strips at the corners and hold the same from displacement 6. In a window or door screen, a rectangular frame having a marginal groove which extends part way through the frame and isspaced from the inner and outer edges thereof, screen material having its outer edges received in said groove, securing strips along each side of the frame and adapted to force the screen material into said groove. and corner irons oneat each corner having inwardly bent flanges which are ada ted to enter the groove at the corners thereof, and between the outer wall of the groove and the screen, said ,cor-ner ironsbeing of a suflicient width to span the 'meeting ends of the securing'stri'ps and serving to retain the same within the groove.

In testimony, that I claim the foregoing as my own, I have hereto aflixed my slgnature in the presence of two witnesses.

' FRANZ PAUL EDLER.

Witnesses:

AUGUST THIE, EDWARD A. BREITHER. 

